Carbureter.



B. RINKE.

GARBURETER.

, APPLICATION FILED NOV. 22, 1907. I v 9%,327 Patented July 27, 1909.

2 SHEETS-SHEET 1.

svwentoz I is a top view of the carbureter.

UNITED STATES PATENT OFFICE.

BERT RINKE, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF 'IO HACKETBROTHERS, OF

DETROIT, MICHIGAN, A FIRM.

GARBURETER.

Specification of Letters Patent.

Patented July 27, 1909.

Application fil ed November 22,'19o7. Serial No. 403,358.

To all whom it may concern:

Be it known that I, BERT RINKE, acitizen of the United States, residingat Detroit, in

the county of \Vayne and State of Michigan,

have invented certain new and useful Improvements in Carbureters, ofwhich the following is a specification.

This invention relates to carbureters particularly adapted forinternalcombustion engines and is characterized particularly by improvement withrespect to the means for feeding air and oil to the mixing chamber orpipe, including an adjustable" air inlet which is operated at all times,as well as an auxiliary air inlet valve which operates at high speed orunder great suction to give an increased supply of air to the mixture.

The device also has certain novelties of construction, as will morefully hereinafter appear.

In the accompanying drawings Figure 1 Fig. 2 is atop View with the topplate or cover removed. Fig. 3 is a vertical section on the line 3-3 ofFig. 1. Fi 4 is a vertical section on the line 4;4 ot Fig. 1.. i

Referring specifically to the drawings, 0 indicates the gasolenereservoir or chamber which has an inlet oil pipe 7 at the bottomcontrolled by a float valve 8 .which has a priming pin 9 extendingthrough a nipple in the reservoir cover, and which may be pressed downby a finger lever 10 at the start. The mixing conduit or tube isindicated at 11 and it is provided with across pipe 12 the bore of whichis continued as at 13 through the wall of the gasolene reservoir toallow the flow from said reservoir to the tube. At the center of themixing tube 11 the pipe 12 has an upright extension 14 with flared top,as indicated-at 15, through which the liquid fuel is drawn and sprayedinto the mixing chamber. The How is controlled by a needle valve 16which is tapped through the u all of the mixing chamber and which opensor closes the bore in the pipe 12 at or about its junction with the borein the upright pipe 14. p

At the lower end the mixing chamber or pipe is reduced, as indicated at17, and projects within a cupped piece 18 which acts to catch anyover-flow of gasolene and also to control the inlet flow of air throughthe openingat the bottom of the mixing tube. Said cuplS is screwed onathreadcd stem end of the tube, so that when flooded there will beenough gasolene in the cup to start the engineat once and the air willbe drawn in through thegasolene in the cup, thereby taking up thegasolene with it.

I At one side of the mixing chamber the casting has a valve chamber 22with an opening 23 in the top controlled by a disk valve 24 carried atthe top of a stem 25 j which works up' and downin a threaded sleeve orbushing 26 screwed into or through the bottom of the chamber. The valveis normally lifted andclosed by a spring 27 coiled around the stem andresting on the shoulder 28 of the bushing. The tension of the valve maybe adjusted by screwing the bushing in or out, and a jam nut 29 fixesthe same as set. The extent the valve will open is controlled by a screw30 projecting upwardly into the bushing 26. The lower end of the valvestem 25- stops against the end of the screw and so limits the opening ofthe valve, and by adjusting the screwthe matter may be regulated. A jamnut 31 fixes the screw as set. A throttle valve is indicated at 32, inthe passage leading to the engine, and the valve chamber communicateswith the mixing chamber through an opening 33 adjacent to the nozzle 15.

In operation, under ordinary conditions, the suctionof the engine drawsair upwardly through the mixing chamber and Yaporizes the fuel drawnthrough the pipes 12 and 14 and so the charge flows to the engine. Athigh speed,- the valve 24 will be drawn open and an additional supply ofair will flow in and enter the mixing chamber through the opening 33 andthereby make the mixture more uniform with respect to the pro )ortionsof air and oil. The proportion 0' air and'gasolene may be varied byraising or lowering the cup 18. Should the valve 24 open at ordinaryspeed, the cup 18 should be lo\\'ere d' to increase the normal airsupply. Various other adjustments may be made with respect to thetension of the spring on the auxiliary air valve and the position of lend and open to provide an air inlet, a cup the cup 18 to obtain thesupply of oil and air.

I claim:

5 In a carbureter, the combination of a casing embodying an uprightmixing tube, an upright valve chamber at one side of said mixing chamberhaving an aperproper relative tured top plate, and an upright oil chain-10 her adjacent said mixing tube and valve chamber, an oil pipeextending across said mixing chamber from said oil chamber and providedcentrally with upper and lower vertical extensions, the upper oneofwvhich is apertured to form a fuel spray pipe, and the lower one ofwhich carries a depending threaded stein, a valve tapped through thevall of said mixing tube and controlling the fuel at the junction ofsaid 20 oil pipe and its apertured extension, said mixing tube beingcontracted at its lower upon said depending stem below said contra ctedtube end, and adjustable to and from \thevsaine, the rim of said cupextending around and above said lower end of said tube, a bushing tappedthrough the lower end of said valve chamber, a disk valve seatedupwardly againstthe apertured top plate thereof, and having a dependingstem extending into said bushing, a spring 111 compression between saidbushing and valve, said bushing being exteriorly adjustable to vary thetension of the spring, and a screw in the bushing, forming an adjustablestop .for the valve stem.

In testimony whereof I afiix my signature, in presence of two witnesses.

BERT RTNKE. \Vitnesses IIENRI (,YALLAGIIEK,

ALBERT V. lICCAULEI.

